At this time, a long table appeared in front of Chu Chen, with a scroll on it, tied with a golden string.

"This should be the formation diagram of the fourth-level trapped formation-King Kong Immovable Formation. He picked up the scroll and muttered, then excitedly untied the golden string and opened the scroll.

Looking at the introduction of the formation above, Chu Chen understood it at a glance.

He knew everything about how the formation was arranged, how the aura operated inside, and how to maintain the operation of the formation with the help of the power of heaven and earth.

In an instant, all the essence of this formation map was learned by Chu Chen.

He was already a sixth-level formation master, and it wasn't easy to understand these fourth-level formation diagrams?

Chu Chen smiled, put down the scroll lightly at the moment, and then came to the front of this fourth-level demon beast.

When the fourth-level demon beast saw someone coming, it immediately began to wake up, and immediately pounced!

"Damn, this is more difficult!"

Chu Chen couldn't help but curse, in the voice that prompted just now, he didn't say that this demon beast would attack him.

If he knew that the fourth-level demon beast would rush over so irritably, how could he walk in front of the demon beast so stupidly!

Fortunately, he is a sixth-level formation master, and arranging a fourth-level formation is simply free to do as he pleases.

He hurriedly changed his gestures, according to what was written on the fourth-level scroll, and soon a golden circular light shield appeared in his hand, he didn't dare to hesitate, and immediately aimed this light mask at the fourth-level demon beast.

Rumble!

With a bang, Chu Chen aimed at the other party, and he really hit it.

After the golden light shield touched the fourth-level demon beast, it directly grew in size in an instant, enveloping it inside.

Roar! Roar!

No matter how this demon beast roared and collided, this golden light mask was indifferent at all, without even the slightest tremble, it was simply stable.

The fourth-level demon beast didn't believe it, it still tried its best to collide, trying to escape from this golden light shield and kill this hateful human being!

One time!

Twice!

Three clicks!

......

Many down!

The tired fourth-level demon beast had no strength, and it squatted on the ground in despair and despair, its eyes revealing a look of discouragement and resignation.

And Chu Chen watched as the fourth-level demon beast exhausted all methods, including pounce, tear, bite, innate supernatural powers, etc., and used a whole set, but it had no effect at all.

Chu Chen's eyes lit up when he saw it, and he couldn't help but secretly admire the magic of this trapped formation.

Soon, a quarter of an hour passed like this, and Chu Chen was forced to enter the sixth picture.

And he was rewarded with a hundredfold system.

"Ding! Congratulations on laying down the fourth-level trapped formation King Kong Immovable Formation, gaining experience 100 times 100. ”

"Ding! Congratulations on your Vajra Immovable Formation having reached the consummation realm!"

The content of the sixth picture appeared, and a long table with a scroll on top of it appeared in front of Chu Chen's eyes again, still tied with gold threads and strings, and he didn't know what the content was.

"According to the scroll, within a time limit of half an hour, the fourth-level defensive formation, the Little Sumeru Vajra Array, will be arranged to resist the attack of the fourth-level demon beast for a quarter of an hour, that is, it will be passed!"

"Another scroll!"

Chu Chen was overjoyed in his heart, this was still a defensive formation.

The Little Sumeru Vajra Formation is a four-level defensive formation, and when this formation is cast, the level of perfection is enough to resist the attack of any fourth-level demon beast, and it can be regarded as the top existence in the four-level defensive formation.

looked at the formation scroll, and then looked at the demon beast on the opposite side, but he didn't expect it to be the one just now, the fourth-level demon beast at this time was staring at him, as if half an hour had passed, and he could rush over to take revenge.

"Don't look at me like that. ”

Chu Chen looked at the fourth-level demon beast and said with a smile: "If you want to kill me to take revenge, I'm afraid you won't have a chance in this life." ”

This sentence is not exaggerated at all, this little Sumeru Vajra Array, he has already memorized it by heart after taking a look, and it can be easily arranged at any time.

Chu Chen put down the scroll, and very quickly arranged the Little Sumeru Vajra Array in his hand, and put it on himself casually, and suddenly he felt that he was shrouded in a layer of enchantment, as if any powerful attack from the outside world could not hit him.

In fact, the defensive formation and the trapped formation are connected, but one is that the people inside can't get out, and the other is that the people outside can't get in, so they have to convert the key point, and the trapped formation can automatically become a defensive formation, and the defensive formation can also become a trapped formation.

Of course, Chu Chen is now a sixth-level formation master, so he can naturally easily see through the key and essence of this, just like a high school student returning to elementary school to do his homework.

The demon beast on the opposite side saw that the other party had already arranged the formation in advance, and roared excitedly at the moment, because it didn't have to wait for half an hour, and it could take revenge in advance.

This fourth-level demon beast rushed over excitedly, but with a bang, it fell to the ground.

"Haha! This little Sumeru Vajra Array is really powerful. Chu Chen was secretly happy.

In fact, just now when this demon beast roared and pounced towards the sky, he was still very scared in his heart.

After all, standing still and letting the demon beast bite is always a stupid behavior, what if this formation doesn't work?

But fortunately, this little Sumeru Vajra Array was very powerful, and directly rejected the fourth-level demon beast, and his hanging heart was also directly put down.

Seeing the failure of the fourth-level demon beast's attack, he was relieved, lying on the ground, holding a straw pole in his mouth, leisurely and bored basking in the sun.

But this monster beast hurts, it has worked hard for a long time, and all its skills have been used, whether it is biting, pounced, tearing, or talented.

But it had no effect at all, and the tired fourth-level demon beast lay on its stomach outside the Little Sumeru Vajra Array and stuck out its tongue.

In this situation, Chu Chen passed the assessment of the seventh formation map and directly stepped into the next formation map, and his Little Sumeru Vajra Formation proficiency also reached the consummation realm.

"This is the eighth. ”

Chu Chen muttered to himself, calculating in his heart, he didn't expect that he had already comprehended the seven formation diagrams so quickly, and reached the eighth.

All thanks to the help of the hundredfold system, of course, and the efforts of the beginning.

Speaking of this, he suddenly sounded an old saying, those who help themselves, God helps!

It's perfect for yourself now.

As long as you work hard, God will be rewarded a hundredfold!

The eighth formation diagram required Chu Chen to arrange a fourth-level killing array, the Nine True Demon Suppression Array, within half an hour, and kill this fourth-level demon beast.

This diagram is more difficult layer by layer, and the killing array is more deeply studied by the trapped array and the defensive array.

The killing array can not only trap the enemy, but also prevent the people outside from coming in to save each other, and can also kill the people inside directly.

Of course, this was extremely easy for Chu Chen, and he quickly laid out the Nine True Demon Suppression Array, and killed the fourth-level demon beast that had been teased twice by himself, and after successfully passing the level, the proficiency of the Nine True Demon Suppression Array also reached the realm of perfection.

After that, he entered the ninth formation map, which is also the last one, as long as he understands this last one, he will be able to pass the assessment, and all the treasures in these six secret rooms are his own!

But when he saw the prompt of the scroll, he was suddenly stunned.